Portable hydraulic drive underwater drilling machine

Abstract

The invention discloses a portable hydraulic drive underwater drilling machine which comprises a base, a mast, a main lifting mechanism, an auxiliary drill pipe lifting mechanism and a drilling machine body, wherein the mast is vertically mounted on the base, the main lifting mechanism and the auxiliary drill pipe lifting mechanism are mounted on the mast, and the drilling machine body is mounted on the main lifting mechanism and comprises a hydraulic motor, a power head and a drilling tool. The power head is mounted on a bearing support, drives the drilling tool to rotate by the hydraulic motor and drives the drilling tool to vertically move by the main lifting mechanism. According to the portable hydraulic drive underwater drilling machine, underwater staff and machinery are stabilized by the aid of an underwater operation platform comprising the base, the main lifting mechanism and the auxiliary drill pipe lifting mechanism, cores can be easily sampled in the presence of flashy flow, the drilling machine can automatically advance downwards along the lifting mechanism under the action of dead weight, operation of the underwater staff is decreased, advance speed can be freely adjusted by the main lifting mechanism, and drilling efficiency is improved.

Description

technical field [0001] The invention relates to marine exploration mechanical equipment, in particular to a portable hydraulically driven underwater drilling rig for obtaining reef-building coral cores. Background technique [0002] Reef-building corals, also known as reef-building corals, are mainly distributed in warm, transparent, and oligotrophic tropical shallow waters. Reef-building corals are very sensitive to environmental changes. The isotopes and elemental compositions in their calcium skeletons can be used to reconstruct high-resolution seawater temperature, salinity, pH, rainfall and other information. Today's hottest global change, ocean acidification, and the most direct carrier of human activities' impact on climate and environment. Therefore, the acquisition of reef-building coral core samples plays a vital role in the research and development of marine science. [0003] At present, reef-building coral core samples are mainly obtained through pneumatic unde...

AI Technical Summary

Problems solved by technology

Among them, the pneumatic underwater drilling rig has a small structure and can be operated by a single person, but its power is small, the sample length is less than 2 meters, and the diameter is 5cm, which gradually cannot meet the research needs.

The hydraulically driven underwater drilling rig has a complex structure, sufficient power, and high torque. It requires two people to operate at the same time. The length of the sample can be less than 3 meters and the diameter is 8cm. Loosening leads to the loss of drilling tools and cores; the sampling process requires three lifting operations to obtain one core sample, which is time-consuming and labor-intensive; when there is a surge, the drilling rig and personnel flutter strongly, making sampling very difficult

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